The Marshall Brothers
type: MusicGroup
popularity: 2
followers: 65
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fcb057b0e7f0f2b2b9cc75f5fb7a48d81e915d9c74d76e0ed73d5a70d79fcdf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954028
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954028
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:08:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2fcb057b0e7f0f2b2b9cc75f5fb7a48d81e915d9c74d76e0ed73d5a70d79fcdf","name":"The Marshall Brothers","registered_at":"2026-06-16T09:50:13Z","symbol":"NIM1014319","token_address":"0xda151aa1e56518ea99764f22fe48dd9f8fadb50f","type":"artist","uuid":"3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcb057b0e7f0f2b2b9cc75f5fb7a48d81e915d9c74d76e0ed73d5a70d79fcdf. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b.json and https://artists.proofprofile.net/proofs/artist/3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0x2fcb057b0e7f0f2b2b9cc75f5fb7a48d81e915d9c74d76e0ed73d5a70d79fcdf","name":"The Marshall Brothers","registered_at":"2026-06-16T09:50:13Z","symbol":"NIM1014319","token_address":"0xda151aa1e56518ea99764f22fe48dd9f8fadb50f","type":"artist","uuid":"3a178c5a-68c0-47c3-bbdf-6b964f1e8f0b"}